Richard... do not raise the fuses too much on higher amp.. the fuse will
hold but the wire(s) will melt and will have a disaster.
I'd think the radio is too old and at one point on of the volume switch it
gives a short and blows the fuse. Best solution is getting a more modern
one... like Alpine or the such.

On Sat, Oct 30, 2021 at 4:30 PM Richard Koerner <rjkinpb@sbcglobal.net>
wrote:

> I'm pretty sure this is not the right forum to ask, but I thought I'd give
> it a try.  In my Vanagon, I have an old school factory Honda Civic AM/FM
> Cassette stereo; bought on eBay for $15 about 15 years ago.  Love it!!!  On
> recent cross-country trip, it just quit working.  I've done a wonderful job
> of rewiring and fusing Constant 12VDC and Switched 12VDC and a dedicated
> ground to radio.  It now works, radio performs normally!  But if I raise
> volume a little bit, the fuse to Radio Station Memory blows.
> Consistently.  Now....I only have 1 Amp fuses to both the radio Power and
> the radio Memory; perhaps these are a bit too low.  Can't figure out why
> raising volume blows Memory fuse.  Do any of you guys have a recommendation
> for fuse values for Constant 12VDC to radio Memory?  I just ordered a kit
> of fuses from Amazon....starting at 1 Amp, then 2, then 3, then 4, then 5,
> then 7.5...and then going into higher values.  My basic plan is to start
> low, test, and gradually creep my way upward.
>