hamx0r

I'm looking to make/buy a harness that plugs into the Bose amplifier plug of a stock system and provides the 4 RCA's to plug into an aftermarket amp and also has leads for the wires going to the speakers.

I have an A6 (C5...2001) with the Bose amp and sub in the back. I've replaced the headunit and am currently sending line level signals to the stock Bose amp. I want to replace this amp and would rather not hack the wires up if i can get a clean plug-in solution. I've scoured posts and online retailers - all I can find are the Metra adapters for easy headunit replacement, but nothing for easy amplifier replacement. Any tips?

Jason

2.7Lturbo

good luck, i just pulled up the diagram and wired it, not too complicated only 5 wires

eejimm

I've had good luck with adapters and harnesses from these guys -
http://stores.ebay.com/Autoware302/A..._sid=226341785
The prices are good, and the parts I've gotten work perfectly.
Jim

hamx0r

Thanks All,

I ended up taking apart the stock Bose amp and clipping off the connector inside. I have a Bentley manual, so I soldered my own wires to the right pins for the speaker wires, power +/-, and remote on. I decided to run new RCA line wires from the HU to the amp because:

1. I didn't trust the common ground 5-wire stock wiring
2. I'd have to buy & solder RCA jacks to the rear harness (pain, and probably noisier)
3. I had to run a line level from HU to AMP for sub (stock just uses Rear signal for sub signal)

I replaced all 4 doors speakers (Helix blue 6.5" components up front, and CDT 6.5" components in back). I planned to go with Helix all around, but the vendor stopped carrying then and suggested CDT. I'm happy with the choice. I will be opening up all 4 doors to change the crossover tweeter boost. By default it was +6db and the highs are a bit hot for my tastes, even though all 4 tweeters are silk dome.

I put B-Quiet (like Dynamat) in all 4 doors and along the trunk floor while I had it all apart. It helped some - I think the most gains were in the trunk lining, so if you have a limited supply/budget, just do that. I put 2 layers on front doors and 1 layer elsewhere.

I mounted the 5-channel Soundstream sub class A/B Amp by screwing it to the underside of the trunk top (not the trunk lid, but under the hat rest area by the back window). I chose to use the stock sub for a while to see how it sounds - the bother of making a sub box seemed high if the stock one could provide what i want. So far, im happy with the choice. The design of 2 small drivers can still produce some good lows, but it doesn't punch really hard. some may be disappointed by that, but I simply want the bass to be present, even if not punchy. Somewhere down the line I'll still probably replace it though if I keep the car a long time.

All that's left now is to tune it by ear. I also need to doublecheck the polarity of my door woofers. I suspect that some of them are backwards. Historically, the car seems to drown out the lows the most when driving (V8 engine rumble), So it'll be a trial/error process to adjust levels, then drive around and re-adjust.

Hope this helps someone else!

Jason

shadow3

Does anyone know if the signal coming form the bose amp to the doors is full range. I am trying to figure out is there is some sort of a crossover present spiting the signal between the door tweeter and lower speaker as it appears that they share wiring. I want to make sure that there is not a crossover somewhere between the bose amp and door wiring as I want to replace the bose amp and place component speakers in the doors with an external crossover.

hamx0r

There was no crossover - just a single pair of wires going to each door which then split within the door to go to the tweeter and woofer. If I recall correctly, there was a capacitor on the tweeter to act as a HPF. When I upgraded my system, i added a crossover and held it in place within the door using sticky velcro strips.

Robert Betancourt

i am try to figure out witch wire are signal coming from radio

georgeb944

Try the A7 forum.

This forum is for the C5 version of the A6, produced between 1997 and 2004