OS mapping for garmin

[BigdummySteve]

Although we may be grounded for the time being I’m hoping to be back out there soon.
Recently I’ve been slightly more ambitious in my destinations and getting out on some more remote solo trips, while my iPhone navigation has never let me down I’ve decided to invest in another garmin device as a secondary.
Does anyone have a source of cheap OS mapping? I did have a SD card loaded with 1:25k and had saved a backup copy but unfortunately wiped the hard drive. I’m open to any other suggestions as I’ll still have OS on the phone, I’m not adverse to paying OS, it’s just that I seem to have payed them several times over for the same product.

[johnnystorm]

Does it have to be OS? OSM is pretty good and if nothing else, you can try out and if you don't like it you haven't spent anything!

http://www.openfietsmap.nl/

[Dean]

Out of date OS Discoverer Premium microSD cards can be found on eBay for about £40, if you don't mind new bypasses and housing developments appearing out of nowhere.

[Pickers]

Steve, I might be able to help you here...