Hi Dread..
Re the transmission:
I'm suspecting the fluid has burnt and caused some problems. The shudder is common with this trans. when it hasn't been maintained. 150k might be too late.
Here's what you need to do before you shoot the trans.
- Completely flush the trans, t.converter, cooler, and lines.
This can be done at home if you have the ability to blow out all the old fluid from the lines, cooler, and converter. If you don't, goto PepBoys or the like and have them do a trans. flush.
- Clean out the fluid pan and magnet, change the filter if there is one. Some of these trans. had only a pickup screen and no filter.
- On the final refill with proper fluid, add two pints of Lubegard Red to the mix. The Lubegard will prevent overheat breakdown and get rid of the shudder syndrome. You may have to find the Lubegard first as some shops wont have it.
- Always flush this trans. at 35k mile intervals.
If that didn't work, it normally will, then you can shoot the trans.
RE the antenna:
The wire harness for the antenna was connected to the stock radio, chances are it still works but you'll have to rig your own wiring to the new head unit. I hear there's an 8-wire connector at that antenna, I can't help you there. I'm sure one's up, and one's down
RE the factory amp:
Can't help you there.. they change from model to model (signature, executive, cartier, etc), and year to year.
If you have a primo model that included the JBL system, it would include a sub-woofer up above the spare tire.. though the cone may have rotted, it might be worth reviving if you don't get another sub.