I believe this pays a grand total of £5.24 ?
https://www.ebay.co.uk/itm/314566858280?hash=item493da55628:g:dAcAAOSwsLFkUWrv&amdata=enc%3AAQAIAAAA4DA3VRT4m4F9ze%2BjKwyUTLSjzAzLgeqXYlgIGHyZlcdMELJT4D3%2F%2BHlekAc%2Bm5WvgxGHzZzIX6tr%2BLhaqy%2BEvvmJgDSz8DtAK6aUzByVqdvZRxmmhpmBCzWeIy%2FQbfu8leUy8wpcHT6uzvLF8uGmbkiQpxU1UqNeI1wTsx4YxvMZ3H9YDBS1MHJNTa7VIs3xflVm615wMgHhupTOwDplGdgIFULeHxgouoClDk9Y32EdN76ZzCitRefU6VS%2Fz7YHFA%2FnBp6ExHDjgozTNpdg8FnoLPiUWdg9wz2sEa5WcrNc|tkp%3ABk9SR_aCtOrpYg
Anything with relay outputs would drive your "thing"
Proper stuff will work with control 4, but the dealers charge like a wounded rhino
I assume your thing, outputs 12v dc for the speaker, I assume this is driven speaker-
https://cqr.co.uk/wp-content/uploads/2023/04/Internal-Sounders-Soint2-and-HILO.pdf
I assume you want a mach II driven sounder thingy with a pot to adjust the volume, but like many things the out the ordinary just it made no more ?
it look like utter kack ?
It appears they sold to ADT cira 2001... unless Guy Ricthie needs an Alarm box for a late 1990 heist or the fury has win on the football pools, I suspect it will remain unsold