Popping from sub when vehicle is started

[chrystalandmike]

I just put in a Clarion NX501 head unit. When I started the vehicle the sub would pop. After talking to a lot of people I found out that the head unit is 12 volts and the Ford amp is 5 volts which made it pop. If you put a regulator form the head unit blue/white on the input prong, a ground on the center prong and the two blue/white wires on the out put prong the popping goes away. I had to solder the wires on the regulator which I had never done (15 dollar kit from Home Depot).

I am no expert and putting in the new unit took 3 days of stress but looking back it was not that hard. I bought the head unit from amazon and the hook up parts from cruchfield which gave me access to tech support (best move I could have made). I just wanted to share the info. Hopefully this will help someone else.

 

[GAINMOB]

Never had that prob

 

[mtondreo]

sounds like a complex solution for when I had to put resistors in line of the amp turn on of my aftermarket head unit to reduce the pop. It did not completely get rid of the pop - but did soften it. I am certain this info will be helpful to others - the turn on pop was very irritating. I may have read your post completely wrong though, but congrats on getting it fixed.

 

[GAINMOB]

check and make sure you have the radio power line all the way in and make sure everything is grounded...make sure all connection is tight and not touching anything...thats prob what it is...i installed my systems...got feed back in my wifes car cuz i didnt have a good ground for the amp....everytime the car shutdown got this wooooooomp sound at the end....scraped the surface...good to go

 

[LarryL]

Crutchfield recommends that 12V to 5V regulator when purchasing your unit (on-line), so for anyone replacing their unit, be sure to get one. I'm getting a new JVC that is coming in today. Unfortunately, they are back-ordered for this regulator and the radio will have to sit there until this comes in.