No sound from my 9855 alpine

open menu on unit use the home button to turn beep sound on or off;;

it sounds like you have the blue wire (antenna remote turn on) instead of the blue/white wire (amplifier remote turn on) turning on an external amplifier in your rover. the antenna remote wire turns off when you leave tuner mode.

had the same problem with my alpine, i was able to fix it once by, popping off the face plate and with fine grit sand paper (lightly) sand the connection points on the radio and the face plate, then put a little bit of dialectic grease on it . also doing a reset on the unit helped me from time to time...

when mine does that it is down to the connection of the face to the head unit, push it firmer or remove and replace. it may be that the connection is worn.

an alpine dealer will have the ability to order a new harness for it.
there is only one made for that particular unit.

Chips fail, even for the best of us! If the preamp outputs are still fine, you can purchase a small 4 channel from Alpine for 100-150. About the same as a repair yet cleaner power. Check EBAY there's always good deals to be had!
Hope this helps

Go to www.pacparts.com

If anybody has that, they will. They have everything for that radio down to the little screws that hold the stuff inside together. If they don't show it as being in stock on their site, then you should call them and they can usually tell you when they expect to get it back in stock.

A new one will come with a new face plate, but you could try checking pawn shops for a used one. Prices will vary.

I also had this problem. I had to go through the menu into the setup and then into tuner settings. There should be an option called tuner area. If you set it to area 1 it should start working. For some reason the sirius only works on area one. Hope that solces your problem

Try lens cleaner first, always the best idea. If it makes a clicking sound when trying to read the discs, you're looking at a bad optical pickup.