[Beelzebubba]

Tang Band W69-1042J 6"x9" Subwoofer

you'd have to fabricate some mounts, but that is not too terribly difficult

 

[Beelzebubba]

Those look interesting but they are 8 ohm vs the factory 2.5 ohm. My (weak) understanding is that higher ohm speakers require more power and heavier wiring.

Oops.

They are 8 ohm, I didn't even check the specs.

I got my full range 3" replacement speakers for my Hondaline Kenwood from them. The quality of the speaker was very good (especially compared to nearly 30 year old weathered Kenwood speakers)