(S) New speakers & Help with car mats pleeease

Hi guys....so today carried out my second mod the first being changing the bulbs to some bright thingy ones i know it's small but i prefer subtle mods, why ruin the look of a beautiful car. So yeah i got some speakers installed did cost an arm and a leg but i know my speakers they are top quality!...anyways i have a set of mats for my car and wana buy a new set but wen i look at the mats they have sort of space for the fixing bolts to clamp it down to the carpet yet the actual car doesnt have space for these fixing bolts can someone please elabourate thanks fellow gpers

Bolts for mats? I brought the propa fiat ones about £47 and all i had to do was put em in place n screw these plastic things in 2 the carpet and it locked the mats down.

Same here, only i got Fiat to fit them for me too when i bought the car