I've seen a modification on www.mods.dk
But I wouldn't be sure about it. It seems unreliable and looking at the schematic of the radio, it doesn't seem to be a good idea to remove the suggested components.
So don't take this information for granted
9 years but anyways, i have tried it and it works BUT. there is a but, the rx coverage is extended to 50-204MHz but the radio does not hear a thing below about 120MHz and above 180MHz
tx is extended to 125 to 180mhz.