Hey mabey someone can help me out I got a 1997 F150 Scab I installed a old Sony CDX-4250 head unit,got the ford adapter for the radio and turned it on sounds ok. I added a single 12" Pioneer 300W MAX. SUB to the unit with a Old Jensen 500 watt 4channel amp . Power to the amp is straight from the batt. and the remote turn on off of the head unit ran to my amp like normal and amp grounded. Ran RCAs from head unit from the rear speaker preout to my amp input and out to my sub.SO my head unit is 40wx4 17 watt count.power to all speakers, and sub pushing 250watts max to 300watt sub well ok but after i turn the volume up so loud (not distorting) my 5amp factory fuse pops to the head unit ! The only thing I can think of is I left my factory rear speakers on the high output from the wire harness still connected. So they are running along with the Sub but obviously can't run that power,and I can't fade them because they a still on the rear channel could this be the problem?? Or is there a posibility that the head unit is too much power for the factory speakers causeing a higher amp draw from the fuse panel??? AHHH help!
