AO Silver Member
Join Date: Mar 2003
Location: Dublin, Ireland.
This is one of the reasons FM took over from AM (LW MW and SW). Electrical noise has a serious effect, as does the grounding/shielding effect of the car's body.
The ideal solution would be to relocate the AM coil in the radio higher than the engine bay, but this is not possible due to the sensitivity of the circuit.
AM uses both the coil and aerial to receive, so you may also find that turning the car so that the coil moves also will improve the reception. That's not a lot of use in a moving car...!
For Sale: Alfa Romeo Spark Plugs - NGK laser platinum, 10mm & 14mm. PM me.
"And now my friend, the first rule of italian driving. Whatsa behind me is not important."