i wanted to know why when i turn my car off i lose all power inside like clock and my lights from the inside dont turn on. and when i trun the car on it like resets the clock and everything

 

check your grounds... sounds like something is lose.

the major ground is your chassis body from your battery... should be a thick cable that is either black with red stripe or black with yellow stripe.

 

ok thanks i will take a look at it... do you think it might have to do with the radio it happend after i installed my stero

 

You wired the stereo wrong and switched memory (yellow) with ignition (red) on the radio when you wired it in. Recheck your wiring...240's can be a pita if you're not familiar with them a lot of stuff runs through the radio wiring.

 

cool good lookin.