Mods for that radio should be found at,

http://www.mods.dk/view.php?ModelId=182

Since your radio already tunes out of the ham bands, I suspect the mod
for frequency extension has already been done.

Both operation and service manuals are available at the same site,
at:

http://www.mods.dk/view.php?ListManuals=alinco



Ed K7AAT