Anyone have detailed amplifier info for premium sound?

Anyone have info for the watts per channel and what the crossover frequencies are (if any)?

I’m looking to replace my tweeters and 4” speakers and was hoping to reuse the factory amp for this - at least for the short term. So I asked JBL and Toyota.

JBL said no can do, Toyota is our customer, not you.

Toyota Direct said to buy a subscription to the online technical information database. Apparently how many watts per channel is too much for Toyota to divulge. For $57,000 they cannot even tell me that?

Don't have any info, but maybe there's some information on the web if you search for a model # printed on the amp itself? --I remember I found some useful information about my Fit's sound system a while back when I couldn't get any from Honda.