Printable View
Putting an "invisible" audio system in a 70 911... will use a dash speaker upgrade, and I'm looking at an amp I can put under the passenger seat with an iPhone interface. The phone will be the only audio source. The dash speaker will be the only speaker (yes, I know it's severely compromised.)
Anyone here have experience with such a stealth install?
If you are the only one listening (i.e. you don’t have to entertain a passenger), and your only source is your phone, why don’t you do what I do? The ‘truly wireless’ headphone technology has finally reached a quality level that is quite high. I have the Jabra Elite 65T and I didn’t have to make one change to my car to get great sound...There are several of them out there (B & O, Apple, Sony, Bose) that, while expensive (>$100), will still be cheaper and less invasive to your vintage car than an ‘invisible’ system!
Building the car for a client. Earphones not legal in his state. Need Bluetooth or USB input amp recommendation.Quote:
Originally Posted by uptheorg
I recently did one in my radio-delete 72T and it came out great. Traveling today but will try to post the details tomorrow.
Set up I created for my 72 hot rod build. Let’s see if uploading works...
Attachment 472805
I went a little beyond.
I put some door speakers behind the factory pockets and perforated the door panels. Plus the stereo speaker upgrade in the factory center dash location
Kenwood has a Bluetooth amp with a small keypad for volume and track control that easily fits in the ashtray. And the amp is very small. Fits behind the wood floor board on the passengers side. Or under the seat.
https://www.crutchfield.com/S-ajHrEP...BoCjf0QAvD_BwE
If you want to preserve the factory radio, this amp has a line-level pass thru, so you can still listen to local radio, if you want.
I installed an exile audio bluetooth receiver behind my dash.
https://www.amazon.com/gp/product/B0...rch_detailpage
I used an RCA to 3.5MM adaptor to plug the bluetooth unit into the AUX input of a small amplifier running in bridged mode.
https://www.amazon.com/iXCC-Premium-...S4G/ref=sr_1_4
and
https://www.amazon.com/gp/product/B0...rch_detailpage
I tried all the aftermarket speaker setups and found that an NOS original dash speaker gave me the best sound. Everything else was just too tinny for me.
Very pleased with the results. Completely stealth, $125 in parts, no permanent mods to the car, and install took less than an hour. My phone connects to the bluetooth and I adjust volume with my phone.
I used
standard speaker (Königs Audio) in the dash
Helix / Match M 5DSP amp with DSP
monster wires Bluetooth Adapter
The amp is compact, fits behind the radio faceplate and has lots of option but pricy.
I used the stock dash speaker hole (with new Blaupunkt speakers) to put some stealthy speakers in there. A radio delete plate to look the part. I can connect to the radio (about the size of a deck of cards) via Bluetooth on my pcone. I like it! I put the stereo unit in my glovebox when I want to change modes (it even has an FM radio...works OK, but I don't use it) or skip tracks without using your phone.
https://www.woodyscustomshop.com/
Nice set up.Quote:
Originally Posted by EuroWerkz1
I have the speaker but not the bracket.
Thank you to all who have answered this thread. I have some excellent options here, but I really appreciate the links to the researched solution by LiveFromNY. I'm inclined to duplicate that setup.
Same here!Quote:
Originally Posted by 9er
Looks to be for a fire extinguisher. Clever use!
I've used their stuff. It's fine. A bit pricey for what it is, and severely under-powered as you'd expect, but if you don't need massive power it'll work fine.Quote:
Originally Posted by DanM
Happy to help. Hope it meets your expectations.Quote:
Originally Posted by Eminence Gris
BTW, I have a similar solution for adding bluetooth to a stock Frankfurt if anyone is interested.
JP, I’m all ears on the Frankfurt solution. Please post or pm me. Thanks!Quote:
Originally Posted by LiveFromNY
Same here! Please post or PM me as well. Thanks!Quote:
Originally Posted by nvr2mny
Sure, guys.
To start you need the same Exile Audio bluetooth receiver:
https://www.amazon.com/gp/product/B0...rch_detailpage
And a slightly different RCA to 3.5mm adapter:
https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1
Install the bluetooth receiver under the dash and connect the RCA/3.5mm adapter. You'll now have a female 3.5mm connection to the bluetooth receiver.
Next, you'll need one of these iPod adapters from Auto Atlanta:
http://www.autoatlanta.com/Porsche-I...RMKRAD001.html
That one will fit most of our mono Frankfurts. Later cars will use this one:
http://www.autoatlanta.com/Porsche-I...RMKRAD002.html
And very early cars may use this one:
http://www.autoatlanta.com/Porsche-I...RMKRAD003.html
If you look at the back of your Frankfurt, there will be either a 5-pin or a 7-pin input. It may be under a plastic cap. It's best to count the pins before you order your adapter.
Plug the iPod adapter into the back of your radio and install the rocker switch to the bottom of the radio with a piece of double sided tape. Connect your previously installed bluetooth receiver to the male 3.5mm male connector on your iPod adapter. These are small parts and they'll all tuck up nicely under your dash with a zip tie.
When you're done, just connect your phone to the bluetooth which then sends the signal to your radio via the iPod adapter and uses your radio's amplifier to power your dash speaker. You can use your radio's volume knob to adjust the volume but make sure your phone volume is up. If you ever want to listen to AM/FM, just reach up under your radio and switch the hidden rocker switch. Switch it back to return to bluetooth.
One note... lots of companies make these iPod adapters. You can use any of them but make sure you use one that has a rocker switch. If you don't have a switch, you'll be stuck on bluetooth permanently with no ability to listen to AM/FM short of unplugging the iPod adapter from the back of the radio.
Let me know if you have any questions.
AWESOME. Thanks!
I'm probably a bit late to this thread but seeing as speakers are the the biggest issue (I have a sport exhaust and I DO still like to hear music other than that), here's my solution.Quote:
Originally Posted by Eminence Gris
Under the passenger seat I run a Kenwood KSC-SW11 powered subwoofer (can't be seen and fits under a sportsitze) and for in dash I have a pair of Kicker DS35 2-way speakers in the standard grill hole - they bolt right in with no mods. For main amp, I use a small Kicker (can't recall the model but about 50W with wired and bluetooth connection that goes where the radio once did. There's a photo of the in dash speakers at page 10 of this thread - http://www.early911sregistry.org/for...ferrerid=22743
Cheers,
Mark
Hello Live,Quote:
Originally Posted by LiveFromNY
It seems that the Exile Audio amp is no longer available since your installation. Any recommendations for a similar, lower-priced unit?
Thanks!
91133, how do the Kicker DS35 speakers mount in the dash?
That's actually the bluetooth receiver. But you're right, it's NLA. We're now using this one and we like it even better:Quote:
Originally Posted by tomg
https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1
I believe I have a couple of both the JL audio and the Exile audio devices as spares as I experimented with some options. Happy to pass either one along to anyone who needs one.Quote:
Originally Posted by LiveFromNY
I've been puttering on my 71 T now for a long time and I'm just about to the point that it'll be a dry weather daily. Until now the motor has been my car audio, with an 80's vintage Sony head and modular sony speakers on the rear floor.. I'm leaning towards the radio delete for my overall dash look. As far as speakers I'm thinking under seat subs, som kind of under dash mounted speakers and possibly rear deck mounted speakers although I'm not sold on those.
Anyway, I like the idea of hidden audio, totally cool with plugging the phone into Aux for streaming and radio (not crazy about Bluetooth tunes)
Anyway, Is anyone aware of an amp with ram? I'd love to be able to upload my entire music library so I can have lossless files "on board"
I've never had a killer (much less decent) sound system in any of my vintage cars so I'd like this to be my first successful attempt.
Well, I committed to a head unit for my project
Just ordered the KMM-BT728HD. I have a set of Blaupunkt separates I'll be mounting in the kick panels.
Currently I'm looking at the cdt 6x9 subs (ordering later this week) the epicenter and an amp dsp combo. I haven't come to a conclusion on the dash speakers as of right now.
I'm somewhat excited about the Kenwood HU at this point as it's a fraction of the cost of the retro sound units, has more features and I can run it remotely by app on my phone, so its going in the glove box.
At this point I'll be using a radio block off and fixing the trim vinyl.... so radio delete!
__________________
@blucille: Curious to know about the sound quality of those door speakers behind perforations. Mulling doing the same for a pair of 6.5s through basketweave door cards with tweets and high mids in the factory speaker enclosures in a 914.
@EuroWerks1: Dig that "fire extinguisher" setup.
And fwiw for everyone else…I switched to phone only audio via 3.5mm jack > RCA input > EQ > amp seven or eight years ago and never looked back. So nice to not look at a radio on the dash, and you gain not just digital music, Pandora, etc but also Waze. Found my phone provided adequate volume control range once overall volume on the EQ was set. Version 2.0 will be Bluetooth and expect some sound degradation, but not sure the delta matters much against a flat six with carbs and the rest of the noise. Also, I can no longer use a 3.5mm jack with my phone anyway, though there's this lightning jack > RCA connector setup (apologies for an Amazon link, but I'm not seeing other availability of lightning to RCA cables just yet):
https://www.amazon.com/dp/B08FCBFVQ4...dDbGljaz10cnVl
Here's an underdash view of my install that I was researching in starting this thread. Motive was stealth with iPhone connectivity and upgrade options.
Not audiophile by far, but you can hear it over the owner's carbureted 3.2...
There is definitely a loss in highs, if you want to improve things, I’d find way to surface mount some tweeters. I’ve got 3.5 inch speakers in the dash that help provide some higher frequencies...not ideal, but overall pretty good ..for my uses, it’s absolutely acceptable.Quote:
Originally Posted by stout
As the owner of this car, I can attest that after two years the system is still going strong. Great design and install by Eminence Gris.Quote:
Originally Posted by Eminence Gris
I decided I want to put in a dsp, the audio control I was eyeballing was discontinued, so I will now be running the dayton dsp, I've read a lot of good things on it. I pulled the trigger on a set of cdt speakers. 2 ohm 6x9 subs, unity 8's for the dash, and a set of new 2020 production 4" es4-cv's. At this point the missing pieces are the amps. Im leaning towards a set of Kenwood Excelons, a mono and a 4 Channel... Unless I find a reason not to the d class kw's seem like serious SQ amps.
The head unit won't be visible, so maybe a little hidden, but the rear deck pod will end up being the give away.
Here is my setup. I have a Mono Becker Mexico but the sound with the dash speaker was not great. Couldn‘t hardly hear anything besides the music from the engine compartment 😉. I bought a small amplifier with a high level input and installed it in the smugglers compartment. I also had some 2 way speakers left from one of my former cars which I could use. Now I finally can listen to the radio and all components can be uninstalled if I want to go back to original settings.
For anyone looking for a quality car amp, this YouTube channel reviews lots of them, and some perform far better than others.
https://www.youtube.com/user/bigdwiz
I'm using a Bluetooth headphone amplifier, connected to a 3.5mm audio-to-DIN cable that plugs directly into the back of my Blaupunkt Frankfurt and plays through the stock dash speaker. Works perfectly and has never run out of charge even after all-day use.
https://images-na.ssl-images-amazon....AC_SL1500_.jpg