no easy alternatives, replacement amp would have to come form a wrecking yard, otherwise wire up your own aftermarket ampAwesome! Thanks a lot, that pdf is great. I was told by Metra to use a 9v battery on the speaker wires (no polarity involved) to see if the speakers make a noise. Where can a replacement OE amp be sourced? Is there a cheap alternative that is plug and play or would i need more Metra harness adapters?