Problem with my new car

I already did a post on this but I’ll do another one as it’s slightly changed now. So I passed my driving test a few weeks ago and got a Chevrolet spark 2013 that was working completley fine for the first week then one night I accidently left a light on in the car and drained the battery. The next day I jumpstarted it took it to the new garage and they told me it needed a new alternator ( 2 different garages said the same thing so I don’t think I was getting ripped off) that’s all been sorted now but the weird part is that since the jumpstart the Speedo fuel gage and radio have been completely dead and everything else (heating ,lights ect ) is working fine I put some new fuses in today hoping that would be it sorted but nothings changed anyone know what might be the problem?