FM receiver is garbage!!
I’ve purchased around 10 units over the years for my various P80 platform cars with the SC head units, plus one for a P2 chassis car with the HU unit (also with the Dolby pro-logic sound).
Sound quality is excellent - it’s plugged through the CD stacker port so as good as a CD. Crisp & clear & sounds great with the factory amp & dynaudio speakers.
I’ve also added the microphone for telephone Bluetooth so it’s perfect in my opinion.
I don’t understand why people replace the original head unit for one which looks way too modern & not original, & usually lose sound quality too.
Each to their own I suppose, but it’s a thumbs up from me.