Almost 100% sure that the head unit is Becker and has speaker level outputs, not line level. Therefore, you will need to buy an amp that accepts speaker level inputs or buy a line level adapter. If you need an adapter, let me know. I have one that I used with my Becker Head Unit and is now sitting on my desk unused. They are usually $25-30 but I'll give it to you cheap since I don't need it anymore.
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