Glad you got the car into the shop and they are diagnosing the systems. However, it sounds like the problem might extend beyond the alternator?
When you bought the car, how many miles did it have? Did you get the complete service history record and have an independent mechanic inspect the car?
Thankfully it sounds like the Starmark warranty will cover the major fixes.
Keep us posted. This is obviously irritating for you but it will be interesting to see the root cause(s).
- Jon E320 210.055
77 Mustang 307,000 mi
63 T-Bird [fully restored]