We installed the vm9022 Jensen radio deck into a 2003 Tiburon. The original radio was an Infinity premium sound system with amp and sub-woofer. After installing the new radio deck we are not getting sound out of the sub. We have cheked and rechecked the wiring and all seems correct. I am guessing that the amp is not getting enough power to turn it on. With the amp buried in behind the rear side panels it is hard to verify that the amp is getting powered on. If we put the old radio back in the sub works again. What do I need to do or check to get the sub to work again?
Reinstall the factory radio use a digital volt meter to see witch wire supplies voltage when radio is turned on and off, note placement on harness then verify this wire is hooked up on the output side aftermarket harness you may have to jump it to get the maps to turn on. tip you can carefully pull unused wire from harness example (dimmer wire orange white) and move it to the position needed to keep it a clean install .
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we did all of this and it is wired correctly. We went to the local custom audio shop and they claim that factory subs will not work with ant replacement radio. This cannot be true, is it?
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