Audio Systems: KDC-MP5032 short, amp alternator, chevy silverado


Question
the deck cuts out. and yes it dims to the beat. the door speakers are just powered by the deck. when i turn the volume down the deck comes back on. no the amp and capacitor do nothing its just the deck cutting out.
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The text above is a follow-up to ...

-----Question-----
I have a KDC-MP5032 i have 4 ga wire for ground and hot all around i also have a 1.5 fared capacitor, 2 1000 cranking amp batteries that are charging at 14.56 amps and a gm 200 amp alternator clean ground connection but when i turn the volume above 20 it cuts out.what could be doing this? its on a 1998 chevy silverado 3500 7.4L.
thanks Justin
-----Answer-----
well, sounds like you did alot of good work on the power system.  
I'm not quite sure where you're saying its cutting out though. help me to understand, is the bass only cutting out or is the cd player cutting out?

if its the cd, are your door speakers runing off their own amps or the cd player?  and does the display on the cd player dim at all (to the beat)

if its the subs only that cut out, does the amps protect light come on?  do you have to turn everything off and back on for the sound do come back, or just turn it down for it to come back?

thanks!

Answer
AHHH!!!! ok, then your fix should be easy!  see you've done a great job at beefing up your charging system and amplifier power management etc.  but since your door speakers have to crank to compete with all the bass they are pulling allot of power out of your head unit!  you have 2 options.

Option 1 =
step 1. run a new wire from the car battery (10 gauge) to the Yellow wire on the cd player,  fuse this wire at the battery for 15 amps if you cd player doesn't have its own fuse.  if your cd player does have it's own fuse you can fuse this wire at 20 amps.
step 2. if the ground wire to your cd player is attached to the original ground from the old radio's wiring harness make yourself a new ground directly to the body (again 10 gauge wire cant hurt) and use this as the cd player's ground instead (do it nice and close to the cd player if possible)
this should provide more power to the cd player and keep this from happening.  some cd players use the yellow wire for main power so if yours works that way, this should help you allot, if your cd player is one of the ones that uses the red wire for primary power, then you'll need to do all of the above steps plus use a relay on the red wire to trigger the new wire you ran to power the red as well.  this is a little trickier, so try the yellow and ground first, if it doesn't help then I'll tell you how to deal with the red wire.

Option 2:
get an amp to run your door speakers and get them off the head unit.  This is really the ideal way to go!  you'll have more power to the door speakers so they'll compete with the subs better, and you'll be able to filter out some bass from the door speakers using the amp's highpass filter so they will sound clearer and your bass wont have phasing distortion anymore.
this is a great bang for the buck amp for door speakers:

http://www.cardomain.com/item/POWOV41200

if you want me to recommend something else I'd be happy to.

either one of these options should fix your problem. option 1 is cheaper and maybe a little less labor intensive.  option 2 is a few more bucks but has MANY other benefits as I discussed.

Let me know what you think!
look forward to hearing from you.