Anybody feel like discussing Old Mopar/Motorola hybrid AM radios?

Thank you Bill,
I have '72 origional am radio in car with two '4-8 ohm compatible' rear speakers in parallel. Also 8 ohm speaker in connection with origional fader switch wireing. It sounds good. However on this forum it is said I will ruin my radio using 8 ohm speakers. My research indicates two 8 ohm speakers wired parallel draws 4 ohm but in series is 16 ohm . Correct me please if this is wrong. Our local radio guy (retired) thought it wouldn't be a problem as these older radios could ' take it'. I would like more opinions on this , especially from those of you that REALLY know this stuff , as I don't.
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