07 S60R Sound From Center Speaker Only HU-850

dcowan23 · Post by **dcowan23** » 22 Jul 2015, 10:42

Hello. I recently got my car back from a body shop after an accident. They put in a new battery, and now only my center speaker works (powered by HU850, the rest are powered by the amp.). I've checked the fuse for the amp. and all connections to the amp. and HU. Does anyone know if the HU is not recognizing there is an amp and additional speakers? Possibly a code that needs to be cleared? Fried amp? Any suggestions/help would be greatly appreciated! Thanks for your time! - Derek

Post by **JRL** » 22 Jul 2015, 15:17

Amp is blown (or the shop has pinched a wire).
What part of the car was worked on?

dcowan23 · Post by **dcowan23** » 22 Jul 2015, 16:27

Passenger side front end accident, but I did have them put in new front struts and emergency brake cables, so a pinched cable may be a possibility.

Post by **JRL** » 22 Jul 2015, 18:46

Disconnect battery
Unbolt the front 2 bolts of the passenger seat
Lift up the seat and pull back the carpet to see if everything in the amp is plugged in

dcowan23 · Post by **dcowan23** » 22 Jul 2015, 22:18

Thank you, JRL. I pulled back the carpet and found the problem. It seems like someone at the shop left a window down during a storm, it is SOAKING wet.. Now that I've received audio advice, it seems like I'll be needing legal advice! Thanks again for the help.

dcowan23 · Post by **dcowan23** » 22 Jul 2015, 22:59

My apologies if I'm supposed to start another post for a new (but related) question, but can the HU-850 amplifier be swapped out with the same amplifier from a donor car, without needing a dealer download/reprogram?

Post by **JRL** » 23 Jul 2015, 06:29

Sunroof drains could be clogged too.
Yes on the amp. Used amps need no new software or adaption.
You need to remove any wet carpet, hang it up to dry out.
Can take a few days to thoroughly dry

dcowan23 · Post by **dcowan23** » 23 Jul 2015, 12:55

The sunroof drain seems to drain (behind wheel) but I feel like I hear a drip behind the glove box, but I don't see any new water or drips entering the footwell.

The part # on my amp is 30752258, and when entered into a search engine it says interchangeable with part numbers 8666630 and 30775120 (volvopartswebstore). To your knowledge are these actually interchangeable? Really appreciate all your advice!

Post by **Vovo_merz** » 23 Jul 2015, 14:01

Some one here may know for sure if they are interchangeable but I personally would get the same to make sure the system works how it should as your radio has few different settings on it compare to standard s60 radio

Post by **JRL** » 23 Jul 2015, 15:51

One is 200w, one is 300w
If you hear dripping behind the glovebox, don't install an amp right away, you need to fix that.
It's usually the lower windshield seal that's allowing water to get behind it and dripping where you're saying it is.
Get out there with a hose. Hose that area down for several minutes then listen and look under the glovebox.

Where exactly is the area on the car was your accident?
Do you have new glass installed?
Need answers to these questions