My friend installed a new reciever in his dash last night. He wired it up and said everything worked fine but when he put it in the dash and then turned his car back on to see if it worked his receiver got no power and his dome lights and trunk lights don't work. He called me up this morning and I've been out looking at it but everything seems fine. The fuses are all fine, wires are proparly hooked up. Do you have any idea what might o happend?