I have a 12V USB hub for the car that powers up when ACC is on along with a android tablet. One of the USB devices I have connected is a USB sound card. However, I need to delay the start-up time off this sound card. I've plugged it into a spare usb extension and then cut the +5v red cable and currently wired it to a toggle switch so I can manually delay the start-up of the USB sound-card which is doing the job for now. But I need to automate this and i'm wondering is there a way to use a 12v relay with some sort of start-up delay so have this automatically turns on after power is on for 10 seconds or so?
Thanks
Thanks