Jus did my whole system install yesterday. did new head unit and 2 12's. Today i had the headunit on for about an hr and it got really hot. Anyone know why this would happen? i am going to go through on wednesday and re wire it but i was jus wondering if anyone has any tips on why this happened? Thanx guys. You guys helped alot wtih my system thats why i am asking =)

 

i think heat is a natural effect from any electronic. my cd's get pretty warm too, almost too hot to hold to your face.

what equipment are we talking about?

 

the deck is a pioneer DEH-P7800MP

 

our dashes dont have a great deal of venting. esp if you have the heat on, gets real hot pretty quick. My buddy put a smal cpu fan behind the dash, and it sucks the hot air out of the radio cavity to floor on drivers side.

 

Are you using the radio's internal amplifiers?

 

Yes i am Why?

Hillbilly. How did you do the CPU fan?

 

Using the internal amp will make a lot more heat, especially with aftermarket speakers, they use a lot more power.


The CPU fan can be done by running ducting from behind the head unit (wherever you choose to mount the fan) and wiring the negative lead of the fan to the nearest ground, and the positive lead to the remote turn-on lead.

 

I dont think the fan is really necessary......but a good idea.....

 

I'd only worry about it if the deck ever kicks into protect mode...

 

x2

look at the heat sink areaavailable to an external amp even a 2x25 and you can see how an internal amp plus cd transport and tunerburied inthe dash is going to run hot.

I tend to buy external amps, and only use the preouts from a deck or at most use the internal amps for rear filll, but I can understand how sometimes budget is the determiniing factor too