Well it depends on a lot of things. What is your budget, and how well do you want them to sound. Also what size slots does your cars front speakers have. 5.25", 6.5".. etc.
If you dont have an amp, it really doesnt matter what speakers you will get because you wont have anything to power them, and they will all sound about the same.
For a fairly cheap pair of superb speakers i would get the Infinity Reference speakers. You can get them in different sizes and if your cars slots are shallow you can get shallow mount speakers so they fit in almost any vehicle.
Go to crutchfield.com, and put your car in and it will show you what speakers fit in your car. Then you can prolly get them on ebay for under $80
I would highly recommend you get an amplifier if you dont already have one.
New Pair XP Audio 350 Watt 5"x7" 2-Way Car Speakers , Poly-Planar 6" 2-Way Coax-Integral Grill Marine Speaker - (Pair) Black, Poly-Planar 3-Way Platinum Panel Marine Speaker - (Pair) White, KENWOOD EXCELON KFC-X463C +2YR WARNTY CAR 4X6" 200W SPEAKERS SPEAKER PAIR 2-WAY, NEW ALPINE SPR-68 CAR TYPE-R 6X8" 600W SPEAKERS 2-WAY SPR68 SPEAKER PAIR 6X8 NEW, KICKER DS40 +2YR WARNTY NEW CAR 4" 100W SPEAKERS 2-WAY SPEAKER PAIR PANEL , KICKER KS350 +2YR WARNTY NEW CAR 3.5" 80W SPEAKERS 3 1/2" SPEAKER PAIR 2-WAY, KENWOOD EXCELON KFC-X683C +2YR WARNTY NEW CAR 6X8 5X7 360W SPEAKERS PAIR 2-WAY, KICKER KS68 +2YR WARNTY NEW CAR 5X7" 6X8" 360W SPEKAERS 2-WAY SPEAKER PAIR , KICKER 11KS40 +2YR WARNTY NEW CAR 4" 120W SPEAKERS 2-WAY SPEAKER PAIR KS40, Pair of 6.5" In-wall 2 way Speakers 100 Watts 6-1/2" **GUARANTEED IN STOCK**, EMERSON TWO WAY BOOKSELF SPEAKERS ( PAIR ), BRAND NEW PAIR PYLE PLRL572 5x7" 6x8" 2 WAY 200W CAR AUDIO SPEAKERS 200 WATTS , ALPINE SXE-6925S 6"x9" 280W 2WAY PAIR CAR SPEAKERS TYPE-E NEW, HITRON 6.5 HS-654 COAXIAL 4-WAY SPEAKER SYSTEM (PAIR), Musica In-Ceiling Speakers, 612C, 6.5", Two-Way (Pair) (NIB), pair of TOA Corp F-160G 2 way 5" 150 watt speakers , 6"x9" Pincer TS-6941R 2000W 3-way Coaxial Car Audio Speaker Black a Pair Pack, Pair NewJEBOM 4" 2 Way Car Speaker JB-420E, 3 WAY 1500W 6.5" CAR DOOR AUDIO STEREO SPEAKER SPEAKERS PAIR Sound System Set, 1 pair of PIONEER TS-G622L speakers 6.5", 2 way, 180w max, used, good condition, Pair of Ramsa WS-A200 Compact High Power Speakers 250 Watts 2-way Bass Reflex, Pair New BOSS SE695 6" x 9" 5-Way 600 Watt Car Speakers, Vintage Ampex model 815 -818 Two way speaker pair , Pioneer TS-G1643R 6.5-Inch 2-Way Speakers (Pair) NEW, Pioneer TS-G6843R 6 x 8 In. 2-Way Speaker 180 W (Pair) , Pair of Working Boston Acoustics HD5 2 Way Bookshelf Speakers Brown , Pyle Home PDIW55 5.25-Inch Two-Way In-Wall Speaker System (Pair), Vintage Pair of 1970's Sansui Six Way SP3500 Floor Speakers , NEW MTX TN693 TERMINATOR 3 WAY 120W AUTO SPEAKER PAIR $79,
Comment