New speakers, crossover question

[gareth h]

I’m upgrading the door speakers in the 993, the Audison components have a crossover which then feeds the tweeter, I’m using the existing wiring to feed the mid speaker.
My query is, can the crossover be wired into the mid speaker terminals (piggybacking off them) or does it need to be spliced into the speaker wires before the speaker terminals (if this makes sense!)?
Thanks
G

[gareth h]

Great, thanks chaps, the car is pretty noisy so I’m not expecting miracles, but the OE speakers were knackered, so hopefully a decent improvement