No Sound coming from front right speakers after headunit install!! PLEASE advise!!

[MMM PWR]

Hi guys,

I just had an Alpine 9847 headunit installed in my E36 M3 (non-HK sound) at Best Buy yesterday. The speakers that ARE working sound incredible...it is crazy how big a difference just a headunit makes!!

BUT, big problem...the front right speakers are not producing sound...I can hear FAINT music from the tweeter, but not much at all. All the other speakers are working just fine, and are loud as HECK matter of fact! But the front right ones are not powering up loud at all!! It almost seems like the power that should be going to those speakers is being redirected to the others, because the other ones sound amazing!! Any ideas as to why my front rights are sounding so weak??

Another thing I noticed is that if I switch off the "internal amp" feature on the 9847, sound is cut off from all my speakers. But I thought I was using the factory amp anyways, not the Alpine one, so why is all sound cut off then?

PLEASE ADVISE, as I don't trust telling these Best Buy fools to fix it before I give them some advice/instructions from you guys!!

[NHenson1]

get yourself to small flathead screwdrivers. take the face and trim ring off of your head unit. there will be two small circular tabs on each side of the head unit, push those up and pry the cd player out of your dash.

check the wiring on the gray and gray/black stripe wires. those are your front right speaker wires. make sure there's a good connection there.

[speedster]

thats the old way new alpines just use keys. i work at best buy. make an appointment and take that shit back, be cool but tell them to fix the problem. they should have done a checklist pre install and if your speakers worked marked that they did. and now that they dont, they will be liable.

[NHenson1]

alpines use keys now?? fascinating. i work at circuit city, we stopped carrying them earlier this year. do they still have the same cages? alpine cages are the shiznot.

[speedster]

ya same cage, but no more littler hook thing on the sides. always thought they were cool but they were a pain in the ass

[MMM PWR]

PM SENT

get yourself to small flathead screwdrivers. take the face and trim ring off of your head unit. there will be two small circular tabs on each side of the head unit, push those up and pry the cd player out of your dash.
check the wiring on the gray and gray/black stripe wires. those are your front right speaker wires. make sure there's a good connection there.