Car problem with lights dimming

 

Bronze Member
Username: Myuhh1

Post Number: 17
Registered: Feb-06
I have no clue y my lights dim. I have a Pioneer avh-p6600 in dash dvd unit & thats it! factory car speakers. When I turn my music to 20, my lights dim.
I just bought 2 12" kicker L7 subs which are 1500 watts together & a Kicker KX1200.1 amp.
I am scared to connect all of this cuz it might drain my battery!
Please let me know the problem.
 

Silver Member
Username: N2audio

Lawrence, Ks USA

Post Number: 621
Registered: Mar-04
your HEADLIGHTS dim with just the dvd player?
 

Gold Member
Username: Bestmankind

Los Angeles, CA USA

Post Number: 2564
Registered: Oct-05
check your connections again. maybe you got a loose connection somewhere.
 

Silver Member
Username: Goose5714

Post Number: 166
Registered: Feb-06
LMFAO, LOL, LMAO, ROFL, ROFLMAO, ROFLCOPTER
 

Bronze Member
Username: Myuhh1

Post Number: 18
Registered: Feb-06
I had it professionally installed, even before I had the in dash unit, & had the factory radio, the inside lights dimmed.
 

Gold Member
Username: Bestmankind

Los Angeles, CA USA

Post Number: 2575
Registered: Oct-05
you should have your alternator and the battery checked.
 

Silver Member
Username: N2audio

Lawrence, Ks USA

Post Number: 630
Registered: Mar-04
oh your INSIDE lights are dimming -- that's what I was trying to figure out.

I would say they just connected your HU power wires (switched and constant) to your car's stock wiring which is sufficient for ~30w of a stock HU, not 70-80 for your Pioneer. You're getting voltage drop in those undersized wires which explains the dimming lights in the dash. Run a 10 ga wire from the battery to power your head unit (constant wire). Also ground it to the chassis - not the stock ground wire (if it has one) and I would expect to see those lights stop dimming.
 

Silver Member
Username: N2audio

Lawrence, Ks USA

Post Number: 631
Registered: Mar-04
btw, what's your car's year/make/model?
 

Bronze Member
Username: Myuhh1

Post Number: 19
Registered: Feb-06
1994 mitsubishi diamante
 

Silver Member
Username: N2audio

Lawrence, Ks USA

Post Number: 649
Registered: Mar-04
looks like a 90A alt. Not TOO small, but if you like to boom a lot you COULD have some trouble with a 1200w kicker running all-out a lot of the time. If you only slam once in a while it may work ok.

I would definitely get your HU on its own power supply. If it's on stock wiring that's almost certainly your problem.
 

Silver Member
Username: Cadillacdb

Houston , TX

Post Number: 572
Registered: Aug-05
Your alternator sounds like its working but barely limping along so you probably need a new Alt ... a
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